HOWTO build arm-linux toolchain for ARM/XSCALE

----------------------------------------------

These instructions document how to build an arm-linux tool chain

that contains big-endian target libraries.

1. Packages used:

binutils-2.14.tar.gz

gcc-3.3.2.tar.gz

glibc-2.2.5.tar.gz

glibc-linuxthreads-2.2.5.tar.gz

2. binutils-2.14

tar xvzf binutils-2.14.tar.gz

cd binutils-2.14

mkdir xscale_linux_be

cd xscale_linux_be

../configure --target=armbe-linux --prefix=/opt/xscale_linux_be --with-lib-path=/opt/xscale_linux_be/armbe-linux/lib --program-prefix=xscale_linux_be-

make

make install

chmod 777 /opt/xscale_linux_be

3. gcc-3.3.2 -- bootstrap gcc

tar xvzf gcc-3.3.2.tar.gz

cd gcc-3.3.2

cp $(ATTACHED t-linux file) gcc/config/arm/

perl -pi -e 's/GCC_FOR_TARGET = \$\$r\/gcc\/xgcc /GCC_FOR_TARGET = \$\$r\/gcc\/xgcc -mbig-endian /g' Makefile.in

cd gcc

perl -pi -e 's/GCC_FOR_TARGET = \.\/xgcc /GCC_FOR_TARGET = \.\/xgcc -mbig-endian /g' Makefile.in

cd config/arm

perl -pi -e 's/^# MULTILIB_OPTIONS = mlittle-endian\/mbig-endian/MULTILIB_OPTIONS += mlittle-endian\/mbig-endian/' t-arm-elf

perl -pi -e 's/^# MULTILIB_DIRNAMES = le be/MULTILIB_DIRNAMES += le be/' t-arm-elf

perl -pi -e 's/^# MULTILIB_MATCHES = mbig-endian=mbe mlittle-endian=ml/MULTILIB_MATCHES += mbig-endian=mbe mlittle-endian=ml/' t-arm-elf

export PATH=/opt/xscale_linux_be/bin:/opt/xscale_linux_be/armbe-linux/include:$PATH

mkdir xscale_linux_be

cd xscale_linux_be

../configure --program-prefix=xscale_linux_be- --prefix=/opt/xscale_linux_be --target=armbe-linux --disable-shared --disable-threads --with-headers=/home/john_ho/ixp422/src/snapgear/linux-2.4.x/include --with-gnu-as --with-gnu-ld --enable-multilib --enable-languages=c

perl -pi -e 's/^program_transform_cross_name = s \^ \$\(target-alias\)- /program_transform_cross_name = s \^ xscale_linux_be- /g' gcc/Makefile

make

make install

4. glibc-2.2.5 (big-endian)

tar xvzf glibc-2.2.5.tar.gz

cd glibc-2.2.5

tar xvzf glibc-linuxthreads-2.2.5.tar.gz

perl -pi -e 's/i386/arm*)\n\tlibc_cv_gcc_unwind_find_fde=yes\n\tarch_minimum_kernel=2.0.10\n\t;;\n i386/' sysdeps/unix/sysv/linux/configure

perl -pi -e 's/weak_alias \(__old_sys_nerr/\/\/ $&/' sysdeps/unix/sysv/linux/arm/errlist.c

perl -pi -e 's/weak_alias \(__old_sys_nerr/\/\/ $&/' sysdeps/unix/sysv/linux/errlist.c

cd sysdeps/arm

patch -p0 < ../../Patch.armbe-strlen-fix

vi linuxthreads/sysdeps/pthread/pthread.h

- change line 163 __thread -> "__thr"

- change line 591 __thread -> "__thr"

vi linuxthreads/internals.h

- change line 555 __thread -> "__thr"

vi linuxthreads/sysdeps/unix/sysv/linux/bits/sigthread.h

- change line 36 __thread -> "__thr"

vi stdio-common/sprintf.c

- line 30 change to "sprintf(char *s const char *format ...)"

vi stdio-common/sscanf.c

- line 30 change to "sscanf(const char *s const char *format ...)"

vi sysdeps/unix/sysv/linux/arm/sysdep.h

- line 134 remove "a1" from clobber list

vi sysdeps/arm/dl-machine.h

- add '\n\' to end of all macro asm lines (there is a _lot_ of them)

vi config.make.in

- change "slibdir=@...@" to "slibdir=@libdir@"

vi sysdeps/unix/sysv/linux/arm/ioperm.c

- add include file to avoid compile error of BUS_ISA not defined.

mkdir xscale_linux_be

cd xscale_linux_be

export CC="xscale_linux_be-gcc -mbig-endian -finline-limit=10000"

export AR="xscale_linux_be-ar"

export RANLIB="xscale_linux_be-ranlib"

export LD="xscale-linux_be-ld -mbig-endian"

../configure armbe-linux --target=armbe-linux --prefix=/opt/xscale_linux_be/armbe-linux --build=i686-pc-linux-gnu --with-headers=/opt/xscale_linux_be/armbe-linux/sys-include --enable-add-ons=linuxthreads --enable-shared

make

make install

6. gcc-3.3.2 (c++ etc) full version

tar xvzf gcc-3.3.2.tar.gz

cd gcc-3.3.2

cp $(ATTACHED t-linux file) gcc/config/arm/

vi gcc/config/arm/t-linux

- remove all "-Dinhibit_libc" occruances

perl -pi -e 's/GCC_FOR_TARGET = \$\$r\/gcc\/xgcc /GCC_FOR_TARGET = \$\$r\/gcc\/xgcc -mbig-endian /g' Makefile.in

cd gcc

perl -pi -e 's/GCC_FOR_TARGET = \.\/xgcc /GCC_FOR_TARGET = \.\/xgcc -mbig-endian /g' Makefile.in

cd config/arm

perl -pi -e 's/^# MULTILIB_OPTIONS = mlittle-endian\/mbig-endian/MULTILIB_OPTIONS += mlittle-endian\/mbig-endian/' t-arm-elf

perl -pi -e 's/^# MULTILIB_DIRNAMES = le be/MULTILIB_DIRNAMES += le be/' t-arm-elf

perl -pi -e 's/^# MULTILIB_MATCHES = mbig-endian=mbe mlittle-endian=ml/MULTILIB_MATCHES += mbig-endian=mbe mlittle-endian=ml/' t-arm-elf

export PATH=/opt/xscale_linux_be/bin:/opt/xscale_linux_be/armbe-linux/include:$PATH

mkdir xscale_linux_be

cd xscale_linux_be

../configure --program-prefix=xscale_linux_be- --prefix=/opt/xscale_linux_be --target=armbe-linux --enable-multilib --with-headers=/opt/xscale_linux_be/armbe-linux/include --enable-languages=c c++

perl -pi -e 's/int namelen/unsigned int namelen/' ../libjava/java/net/natInetAddress.cc

[ For big-endian ]

perl -pi -e 's/^CC_FOR_TARGET = \$\$r\/gcc\/xgcc/CC_FOR_TARGET = \$\$r\/gcc\/xgcc -mbig-endian /' Makefile

perl -pi -e 's/\$\$r\/gcc\/ -nostdinc\+\+ /\$\$r\/gcc\/ -nostdinc++ -mbig-endian /' Makefile

cd gcc

perl -pi -e 's/libstdc\+\+ /libstdc\+\+ -mbig-endian /' Makefile

make LDFLAGS="-mbig-endian"

make install

7. gdb-5.1.1

bzip2 -cd gdb-5.1.1.tar.bz2 | tar xvf -

cd gdb-5.1.1

mkdir xscale_linux_be

cd xscale_linux_be

../configure --prefix=/opt/xscale_linux_be --program-prefix=xscale_linux_be- --target=armbe-linux

make

make install

8. cd /

tar cvzf /opt/xscale_linux_be-toolchain-20040511.tar.gz /opt/xscale_linux_be

------------------------------------------------------------------------------

APPENDIX A -- modified t-linux for gcc-3.3.2

------------------------------------------------------------------------------

# Just for these we omit the frame pointer since it makes such a big

# difference. It is then pointless adding debugging.

TARGET_LIBGCC2_CFLAGS = -fomit-frame-pointer -fPIC -Dinhibit_libc -D__gthr_posix

LIBGCC2_DEBUG_CFLAGS = -g0

# Don't build enquire

ENQUIRE=

LIB1ASMSRC = arm/lib1funcs.asm

LIB1ASMFUNCS = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_lnx

# MULTILIB_OPTIONS = mhard-float/msoft-float

# MULTILIB_DIRNAMES = hard-float soft-float

MULTILIB_OPTIONS = mlittle-endian/mbig-endian

MULTILIB_DIRNAMES = le be

# If you want to build both APCS variants as multilib options this is how

# to do it.

# MULTILIB_OPTIONS += mapcs-32/mapcs-26

# MULTILIB_DIRNAMES += apcs-32 apcs-26

EXTRA_MULTILIB_PARTS = crtbegin.o crtbeginS.o crtend.o crtendS.o crti.o crtn.o

LIBGCC = stmp-multilib

INSTALL_LIBGCC = install-multilib

T_CFLAGS = -Dinhibit_libc -D__gthr_posix_h

# Assemble startup files.

$(T)crti.o: $(srcdir)/config/arm/crti.asm $(GCC_PASSES)

$(GCC_FOR_TARGET) $(GCC_CFLAGS) $(MULTILIB_CFLAGS) $(INCLUDES) \

-c -o $(T)crti.o -x assembler-with-cpp $(srcdir)/config/arm/crti.asm

$(T)crtn.o: $(srcdir)/config/arm/crtn.asm $(GCC_PASSES)

$(GCC_FOR_TARGET) $(GCC_CFLAGS) $(MULTILIB_CFLAGS) $(INCLUDES) \

-c -o $(T)crtn.o -x assembler-with-cpp $(srcdir)/config/arm/crtn.asm

------------------------------------------------------------------------------

------------------------------------------------------------------------------

APPENDIX B -- Patch.armbe-strlen-fix for glibc-2.2.5

------------------------------------------------------------------------------

--- strlen.S.orig 2003-06-30 14:55:04.000000000 +0200

+++ strlen.S 2003-06-30 14:58:16.000000000 +0200

@@ -53 11 53 20 @@

ldrne r2 [r1] $4 @ and we continue to the next word

bne Laligned @

Llastword: @ drop through to here once we find a

+#ifdef __ARMEB__

+ tst r2 $0xff000000 @ word that has a zero byte in it

+ addne r0 r0 $1 @

+ tstne r2 $0x00ff0000 @ and add up to 3 bytes on to it

+ addne r0 r0 $1 @

+ tstne r2 $0x0000ff00 @ (if first three all non-zero 4 addne r0 r0 $1 @ must be zero)

+#else

tst r2 $0x000000ff @ word that has a zero byte in it

addne r0 r0 $1 @

tstne r2 $0x0000ff00 @ and add up to 3 bytes on to it

addne r0 r0 $1 @

tstne r2 $0x00ff0000 @ (if first three all non-zero 4 addne r0 r0 $1 @ must be zero)

+#endif

RETINSTR(mov pc lr)

END(strlen)